Machine for use in the manufacture of chain-links.



No. 838,069. 0 PATENTED DEC. 11, 1906. w. BAUERMEISTER.

MAGHINBFOR USE IN THE MANUFACTURE OF G HAIN LINKS.

APPLICATION FILED NOV- 3. 1905.

Fig.2

3 5 m. wi-ineooe 38 Wuv wmBauermelster, W 2 B- I PATENTED DEC. 11, 1906. V W. BAUBRMEISTBR. MACHINE FOR USE IN THE MANUFAGTUR E OF CHAIN LINKS.

APPLICATION FILED NOV. 3. 1905.

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No. 838,069.. PATENTED DEC. 11-; 1906. W. BAUERMEISTER.

M AGHINE RQR USE IN THE MANUFACTURE OF CHAIN LINKS.

APPLICATION FILED NOV. 3, 1905. I

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, avwento z %@mm MummBuuerm etster (ii v M atfozmqo WILLIAM BAUERMElSYlER, OF COLUMBUS, OHIO.

MAGl-NNE FOR USE !N THE MANUFACTURE OF CHAIN-"LINKS.

Specification of Letters Yatent.

Patented Bed. 11, race.

Application filctl November 3, 1905. $eri 1 N 285,706, {7

To (all Hill/(1711', it TIMI/Z] concern/.-

Be it known that 1, WILLIAM Biuuuniiais- (run, it citizen of the United States, residing: at ()olm'ubus, in the county of Franklin nnd State ol" Ohio, have inveiited certuiu new and useful improvements in hhichincs lor l so in and exact description. ol? the invention such fulcrumed to rock, as usual, in suitable beeriugs on the frame. r. i

12 designates t'l coiled spring that connects the lorwurd portion of the hammer-lever and the 'l'rzuuc to increase the power of the doWn strolqc ol. the lninuueix The hood of thelever the Mnnulncturc l' Chain-Links; and. l do licrcliyileclcrcthel'ollowingtol wtl'ull cleor, t

; work required olj it,

.is will enable others skilled. in the art. to l which it :ippcrtninsto make and use the some. lleretol'orc the links titsttunlzirdixcd chum have been. slriii htencd and stretched. to the desired. intcruzil dizuucter by met-ins of :1 die conteiniug ii tapering punch upon which the lillli while in a hot stntc und zLl iC/l welding was driven.

} luuumer-lcver.

The object ol the present invention is to i provide improved menus tor stiretclung or both straightening and stretching the linl-;.

lt also on object oi the invention to com bine the menus tor stretchiugor both stretching and straightening with nicians l'orwcldin; in such wise or by such iuecins that the lever or device l'or putting into open; lion the weldlug-die may no used l'or putting; into opeisi 'tion the link-stretching devices.

21nd conihimtions ol parts hereinafter dewhich l'rictiim-rollcr in the rezi r arm of the hmnmere lius keyed to it the lnumuer die-block 13, e pl'opiiut cly formed on its face to perform t ie is hereinafter described; :uivil die-block which is and has its face formed l t designates an. keyed to the l'rzune to cot'ipernte with. the die-block 13. "The" rcor tillll ol the lnunmer-leveris provided with an nutifriction-roller 11., as usual.

t5 designates fl driven shaft mounted on thercnr ol the t in me above the rear arm of the This shalt has secured to it n czun lo, preleruhly volute in cross-section and adopted when rotated to acton'the entilever, so no to depress that ztlli'] and raise the lmmiuer-heiul, but permitthe hammer-heed to dropwheu the high point of the cmnlezives the uu tilrictiou-rollcr. The emu 16 is made tspcring lrom the portion. that operates the luimnierdcvor to the portion that operates the stretcher, for the purpose hereinafter exlhc invention consis s m the const motion 1 elcviition with the driving-wheel and clutch removed. Fig. 3 is a rear elevation with :1 portion ol the l'rzuuc lu'oli'en out to show the clutch-rel easing pin Fig. 4 shows the drivil'ig ti'llcel nud clutching; device therein with the clutch-holt thrown out. Fig. 4 is it similar view with the clutch-bolt drown in. Ll ig. i" l sectional view of the loose pulley, showin; in edge view the clutching deviccs. Fig. 5 illustrates the stretching devices, together with thecooperatingstraightenlug-lace oil the lnmuuer (lie-l locl, the section, being token in the line :10 (U, Fig. 1. Fig. 6 i: e front view of the luuniuer rind envil die-blocks, it link being shown in section between the welding portions of the blocks. F 2 7 and 8 show in plan view the operative res of the upper and lower die-blocks, respectively.

in the several views, 10 designates :i suitable iriuue upon which the operative ports are mounted.

(lesignntes the hammer-lever, which is l word to apoint tunler the smellcr end of the 1 1o The com ll) is therefore, in etl'ect,

,erethly' tL little less than the'thickness of the bar ol' metal of which the link is'formeil, so that the strzughtemng-surlaec of the hammerdie can descend. on the link without contact -IOO with the stretching-dies. The lower erni of the lever 18 projects downward into the frame below the lower side of the anvil-die.

19 designates it long lever fulcrumed at its forward end at 19 in the frame below the 105 lnumner-die and having at tluit end a cam 19" to net on the lower :LIlll of the die-lever l8. Rocking of the long lever 1t) vibrates thedie lever 15. The long lever ,19 reaches rear- The height of cam 16, so as at the proper time to be acted on by said cam. The rear .end of-thelong lever 19 where it is acted on by the cam is preferably furnished with an antifrictionroller 19.

V 20 designates a belt-pulley that normally runs loose on the shaft 15. This pulley is hollow at one side, and the inner side of the diametrically opposite edges of its rim are cut away with gradually-deepening recesses 20, that terminate in shoulders 20', as shown. lVithin the cavity of the bclt-pulley and secured t0 the shaft 15 is a disk 21, having a radially-extending case 21 in which slides a clutch-bolt 22. The clutch-bolt 22 has two pins 22, that project laterally through a radial slot 21 in the wall olthe case 21*. Pivoted at 23 on the face of the disk 21 is one end of a dog 23, having a cam edge 23, while the other end of said dog lies between the pins 22 of the clutch-bolt 22. A spring 2% presses against the inner side of the dog 22; so as to throw the clutch-bolt outward and into position to be engaged by one or the other of the shoulders 20 of the belt-pulley as the latter revolves.

25 designates a pin that is slidable horizontally in a seat in the side of the frame toward and from the disk 21 so that its outer end can be projected into the path of the cam edge of the dog 23 for the purpose of re leasing the clutch-bolt 22 from the drivingpulley. The inner end. of the pin 25 is hinged to one end of a bell-c 'ank lever 26, that is fulcrum-ed at 26 on the frame, and the other end of the bell-erank lever 26 is connected, by means of a link 27, with the rear extremity of a foot-lever 2d, secured to a shaft 20, supported by and lmtween the rear legs of the frame. The forward end of the foot-lever 28 extends to a point near the front of the machine and where it can be reached by the man using the machine.

The long lever 19, that operates the movable or vibratable member of the linkstretching device is connected with the shaft 29 by means of a rod 30, hingedly connected to said long lever and to the upper end of an arm 31, that is secured at its lower end tot-he shaft 29. A spring 32, connecting the arm 31 and the frame 10, tends to hold the rear portion of the lever 19 up with the antil'rietion-roller toward the cam and the pin 25 inward with its outer edge in the path of the cam edge of the dog 23. Therefore to clutch the belt-pulley to the shaft 15 when the latter is to be driven the foot-lever 28 will be depressed at its forward end sufficiently to withdraw the end of the pin 25 from the path of the cam edge of the dog 2. it will be borne in. mind from the construction described that a slight depression of the forward end of the foot-lever completely Withdraws the pin 25 from the path of the cam edge of the do 23 and that a further depression of said lever draws down the in nor arm of the link-stretcher-operating lever 19 and that because the portion of the cam 16 that efl'ects the operation of said lever 19 is of smaller radius than that portion which ell'ects the operation of the hammer-lever the said lever 1.9 may be withdrawn entirely from the range of action of the smaller portion of the cam 16, while the hammer remains within the range of the action of that cam. hammer may therefore be operated without operating the stretcher, or both may operate The of the strelchcr-opcrating lever is within the range of action of the cam. course be made in two separate parts, one to act on the hammer and theotlier to act on the stretcher; but for convenience in manufacture they are made as one piece or casting.

The hammer and anvil die-blocks are made conveniently broad enough to contain both the welding and straightening surfaces. The hammer die-block is provided with a'recess 13", the surfaces of whichcooperate with the projection 14 on the anvil die-block to weld and rough-shape the ends of the lirileblank, and the hammer dieblock also has a flat surface 13*, adapted to descend on and straighten the welded link when it is placed over the stretching devices; but if the link is only to be stretched and not to be straightened that portion of the hammer-die containing the straiglitening-surface 13 can be omitted. liecesses 13 and 1.4" are also provided for the reception of the linkthat is connected with the link being stretched.

An adjustable. set-screw 33 in. the frame The cam can of can be used to limit the lin '-stretching throw of the die-lever l8, and if the throw be slight the arm 19 may be slightly flexed under the action of the cam that operates said lever; but if this llcxing should prove undesirable an operating-cam of appropriate radius can be substituted for that on the machine.

In practice the open link or link-blank being duly heated usual is first Welded on the part 14 of the an'i'iLdie by one or more blows of the hamrner-die, and then while, the hammer-die is in elevated position the link is transferred to and placed overthe stretching devices. After the welding operation the link is usually left in a state of more or less distortion, which may be removed by the impact of the llat portion 13" of the hammerdie, which for that ])1,li])OSU descends upon the link while on the link-stretching devices.

The arrangement of the cam on'the shaft case 21 with said pin and cam in that posi- 1 tion where the hammer is held at its extreme high position. The position of the cam 16 with respect to the positionof the pin 25 is indicated by broken lines in Figs. 4 and 4.

What I claim, and desire to secure Letters Patent, is-

1. In a machine for use in the manufacture of chain-links, a link-stretching device commen1ber.,fi t4d'to said support, a movable link-stretching member pivoted to said support and adapted to enter the link and en gage the inner surface thereof, and means for actuating the link-stretching member, the

said device adapted to receive the separate links to be stretched and act thereon independently of the adjoining links.

2. In a machine for use in the mamifact-ure of chain-links, a link-stretching device com.- prising a link-holding member, a movable link-stretching member adapted to enter the link and engage the inner surface thereof, means for actuating the link-stretching member, and an adjustable stop for limiting the movement of the link-stretching member.

In a machine for use in the manufacture of chain-links, a link-stretching device includ ing a support for the link, a stationary linkholding member on said support, a vibratable link-stretehing member pivoted to said supf port, a le er to actuate the vibratable memher, and a cam to actuate said lever.

4. In a machme for use 111 the manufacture of chain-links, a lmk-stretchmg devlee lncludl l l ing a support for the link, a movable linkstretching member, a link-holdin member adapted to cooperate with the said movable link-stretching member to stretch the link,

means 1or operating said movable member,

and a hammer-die adapted to act upon the link to straighten the same while on the stretching device.

5. In a machine for use in the manufacture of chain-links, a support for the iillkfETlDkstretching device comprising a link-holding member, a movable link-stretching member prising a support for the lmk,a lfllli-lloldlllg cooperating with said link-holding member and adapted to enter the link and engage the inner surface thereof, the said members adapted to engage tlie separate links to be stretched and act thereon independently of the adjoining link, a hammer and operatingshaft therefor, and devices connected with said shaft for operating the movable linkstretching member. r 6. In a machine for use in the manufactur of chain-links, the combination of an anvil and a hammer for straightening the link, a cam for operating the hammer, means for stretching the link comprising a stationary member fixed to said anvil, a movable linkstretching member pivoted to said anvil, a cam for operating said movable member, and means adapted to put the imwable member out of range of action of its cam, said means being also adapted to put into and take out of action the cam for operating the hammer. 1n testimony whereof I atlix mysignat-ure in presence of two witnesses.

WILLIAM BAUERMELSTER. Witnesses:

()LIN J. Ross,

BENJ. FINcKEL. 

